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Finding the Fourth Proportional to 581.04, 871.14 and 272.74

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Solution

The fourth proportional to 581.04, 871.14 and 272.74 is: 408.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.04 : 871.14 = 272.74 : x
  2. Step 2: Convert to fraction form
    581.04/871.14 = 272.74/x
  3. Step 3: Cross multiply
    581.04x = 871.14 × 272.74
  4. Step 4: Simplify right side
    581.04x = 237,593.57
  5. Step 5: Solve for x
    x = 237,593.57/581.04
  6. Step 6: Final answer
    x = 408.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.